Electronic circuit for low-loss, inexpensive and space-saving analog dimming of LED light with one or more channels in connection with a DC / DC converter.

摘要

The invention relates to an electronic circuit for current regulation of the currents I 1 to I y which flow through one or more channels, each channel being equipped with one or more LEDs. The circuit consists of the electronic components MOSFET or transistor of another type, for example field effect transistor or bipolar transistor, operational amplifier, shunt resistor RS h, RC low-pass filter, PWM output "PWM" and microcontroller or other microcomputer for specifying the setpoint for the currents I 1 to I y. The setpoint specification for the currents I 1 to I y can also be generated by another component or another electronic circuit. The electronic circuit is used for lighting purposes.